Products > Test Equipment

SainSmart DDS120 & DDS140 USB Oscilloscope

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bianchifan:

--- Quote from: doctormord on March 15, 2016, 11:29:59 pm ---Needs the mega decryption key.  :-//

--- End quote ---
2nd file is from a private account, don't know the problem.. :(
Mega never stressed me , neither Ubuntu(64) nor win7(x64).
No idea, Zippyshare doesn't work for me since some monthsss#

BTW..PCB of the actual DDs140 shows much better soldering job :)



--- Quote from: merbanan on March 15, 2016, 09:13:41 pm ---Ok, I have now added:

http://sigrok.org/wiki/SainSmart_DDS120

--- End quote ---

Please don't forget DDS140 ;)

Until now I thought Sigrok/Pulseview isn't a scope SW but Logic analyser, I used it a few times with my USBee clone from BG.

merbanan:

--- Quote from: bianchifan on March 16, 2016, 01:39:20 pm ---
Please don't forget DDS140 ;)

Until now I thought Sigrok/Pulseview isn't a scope SW but Logic analyser, I used it a few times with my USBee clone from BG.

--- End quote ---

Well Sigrok hasn't a scope yet. But it provides an api for it. So write one scope app and you can support all the hardware that sigrok has drivers for. And regarding DDS140 support, start by documenting it in the Sigrok wiki. There is lots of information spread around in this thread that could be used to create a wiki page.

merbanan:
I created a firmware based on the Hantek 6022 one and tried to load it. The controller wouldn't re-enumerate because the fx2 had already loaded a firmware from the eeprom. I then removed a jumper on the board and then the fx2 was happy to load the image. Through the firmware seemed running the values from it was bogus.  I could just hack the eeprom so it wouldn't read the firmware from there I feel that it is much easier to write a driver for the Sainsmart and let it load its own firmware that should be working fine.

doctormord:
You could program the sigrik firmware to eeprom as well, so it works out of the box, I guess. Flashing the EPROM is shown in this thread, also hex editing the IDs (vendor/class/usb).

For the bogus values, maybe the ADC is read out/running in a different way than on the Hantek?

bianchifan:
Another try, anonymous on filehorst.de(germen), checked twice from different requesters

DDS140.7z

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